use crate::common::MacAddr;
use crate::network::refresh_networks_addresses;
use crate::{NetworkExt, NetworksExt, NetworksIter};
use std::collections::{hash_map, HashMap};
use winapi::shared::ifdef::{MediaConnectStateDisconnected, NET_LUID};
use winapi::shared::netioapi::{
FreeMibTable, GetIfEntry2, GetIfTable2, MIB_IF_ROW2, PMIB_IF_TABLE2,
};
use winapi::shared::winerror::NO_ERROR;
macro_rules! old_and_new {
($ty_:expr, $name:ident, $old:ident, $new_val:expr) => {{
$ty_.$old = $ty_.$name;
$ty_.$name = $new_val;
}};
}
#[doc = include_str!("../../md_doc/networks.md")]
pub struct Networks {
interfaces: HashMap<String, NetworkData>,
}
impl Networks {
pub(crate) fn new() -> Networks {
Networks {
interfaces: HashMap::new(),
}
}
}
impl NetworksExt for Networks {
#[allow(clippy::needless_lifetimes)]
fn iter<'a>(&'a self) -> NetworksIter<'a> {
NetworksIter::new(self.interfaces.iter())
}
fn refresh_networks_list(&mut self) {
let mut table: PMIB_IF_TABLE2 = std::ptr::null_mut();
unsafe {
if GetIfTable2(&mut table) != NO_ERROR {
return;
}
for (_, data) in self.interfaces.iter_mut() {
data.updated = false;
}
let mut groups = HashMap::new();
let mut indexes = Vec::new();
let ptr = (*table).Table.as_ptr();
for i in 0..(*table).NumEntries {
let ptr = &*ptr.offset(i as _);
if (ptr.TransmitLinkSpeed == 0 && ptr.ReceiveLinkSpeed == 0)
|| ptr.MediaConnectState == MediaConnectStateDisconnected
|| ptr.PhysicalAddressLength == 0
{
continue;
}
let id = vec![
ptr.InterfaceGuid.Data2,
ptr.InterfaceGuid.Data3,
ptr.InterfaceGuid.Data4[0] as _,
ptr.InterfaceGuid.Data4[1] as _,
ptr.InterfaceGuid.Data4[2] as _,
ptr.InterfaceGuid.Data4[3] as _,
ptr.InterfaceGuid.Data4[4] as _,
ptr.InterfaceGuid.Data4[5] as _,
ptr.InterfaceGuid.Data4[6] as _,
ptr.InterfaceGuid.Data4[7] as _,
];
let entry = groups.entry(id.clone()).or_insert(0);
*entry += 1;
if *entry > 1 {
continue;
}
indexes.push((i, id));
}
for (i, id) in indexes {
let ptr = &*ptr.offset(i as _);
if *groups.get(&id).unwrap_or(&0) > 1 {
continue;
}
let mut pos = 0;
for x in ptr.Alias.iter() {
if *x == 0 {
break;
}
pos += 1;
}
let interface_name = match String::from_utf16(&ptr.Alias[..pos]) {
Ok(s) => s,
_ => continue,
};
match self.interfaces.entry(interface_name) {
hash_map::Entry::Occupied(mut e) => {
let mut interface = e.get_mut();
old_and_new!(interface, current_out, old_out, ptr.OutOctets);
old_and_new!(interface, current_in, old_in, ptr.InOctets);
old_and_new!(
interface,
packets_in,
old_packets_in,
ptr.InUcastPkts.saturating_add(ptr.InNUcastPkts)
);
old_and_new!(
interface,
packets_out,
old_packets_out,
ptr.OutUcastPkts.saturating_add(ptr.OutNUcastPkts)
);
old_and_new!(interface, errors_in, old_errors_in, ptr.InErrors);
old_and_new!(interface, errors_out, old_errors_out, ptr.OutErrors);
interface.updated = true;
}
hash_map::Entry::Vacant(e) => {
let packets_in = ptr.InUcastPkts.saturating_add(ptr.InNUcastPkts);
let packets_out = ptr.OutUcastPkts.saturating_add(ptr.OutNUcastPkts);
e.insert(NetworkData {
id: ptr.InterfaceLuid,
current_out: ptr.OutOctets,
old_out: ptr.OutOctets,
current_in: ptr.InOctets,
old_in: ptr.InOctets,
packets_in,
old_packets_in: packets_in,
packets_out,
old_packets_out: packets_out,
errors_in: ptr.InErrors,
old_errors_in: ptr.InErrors,
errors_out: ptr.OutErrors,
old_errors_out: ptr.OutErrors,
mac_addr: MacAddr::UNSPECIFIED,
updated: true,
});
}
}
}
FreeMibTable(table as _);
}
self.interfaces.retain(|_, d| d.updated);
refresh_networks_addresses(&mut self.interfaces);
}
fn refresh(&mut self) {
let entry = std::mem::MaybeUninit::<MIB_IF_ROW2>::zeroed();
unsafe {
let mut entry = entry.assume_init();
for (_, interface) in self.interfaces.iter_mut() {
entry.InterfaceLuid = interface.id;
entry.InterfaceIndex = 0; if GetIfEntry2(&mut entry) != NO_ERROR {
continue;
}
old_and_new!(interface, current_out, old_out, entry.OutOctets);
old_and_new!(interface, current_in, old_in, entry.InOctets);
old_and_new!(
interface,
packets_in,
old_packets_in,
entry.InUcastPkts.saturating_add(entry.InNUcastPkts)
);
old_and_new!(
interface,
packets_out,
old_packets_out,
entry.OutUcastPkts.saturating_add(entry.OutNUcastPkts)
);
old_and_new!(interface, errors_in, old_errors_in, entry.InErrors);
old_and_new!(interface, errors_out, old_errors_out, entry.OutErrors);
}
}
}
}
#[doc = include_str!("../../md_doc/network_data.md")]
pub struct NetworkData {
id: NET_LUID,
current_out: u64,
old_out: u64,
current_in: u64,
old_in: u64,
packets_in: u64,
old_packets_in: u64,
packets_out: u64,
old_packets_out: u64,
errors_in: u64,
old_errors_in: u64,
errors_out: u64,
old_errors_out: u64,
updated: bool,
pub(crate) mac_addr: MacAddr,
}
impl NetworkExt for NetworkData {
fn received(&self) -> u64 {
self.current_in.saturating_sub(self.old_in)
}
fn total_received(&self) -> u64 {
self.current_in
}
fn transmitted(&self) -> u64 {
self.current_out.saturating_sub(self.old_out)
}
fn total_transmitted(&self) -> u64 {
self.current_out
}
fn packets_received(&self) -> u64 {
self.packets_in.saturating_sub(self.old_packets_in)
}
fn total_packets_received(&self) -> u64 {
self.packets_in
}
fn packets_transmitted(&self) -> u64 {
self.packets_out.saturating_sub(self.old_packets_out)
}
fn total_packets_transmitted(&self) -> u64 {
self.packets_out
}
fn errors_on_received(&self) -> u64 {
self.errors_in.saturating_sub(self.old_errors_in)
}
fn total_errors_on_received(&self) -> u64 {
self.errors_in
}
fn errors_on_transmitted(&self) -> u64 {
self.errors_out.saturating_sub(self.old_errors_out)
}
fn total_errors_on_transmitted(&self) -> u64 {
self.errors_out
}
fn mac_address(&self) -> MacAddr {
self.mac_addr
}
}